IWC
GST Aquatimer IW3756-17— lug 22mm
IWC GST Aquatimer IW3756-17: 22mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.
Artisanal Note
"This model requires a precise 22mm lug width to preserve the original sartorial balance."
Technical Specifications
IWC IW3756-17The essential strap measurement.
Browse 22mm straps →IW3756-17
IWC caliber 79261 Hours, Minutes, Small Seconds | Date, Day, Month, Perpetual Calendar, Year Indicator | Chronograph
The Heritage
Compatible Straps
Selected for the 22mm lug width of the GST Aquatimer
FAQ
What is the lug width of the IWC GST Aquatimer IW3756-17?
The lug width measures exactly 22 millimeters, measured from the inner shoulder of the left attachment to the inner shoulder of the right attachment, completely excluding the spring bars. This measurement is specific to the GST and most IWC divers from the same generation.
Which strap do you recommend for the GST Aquatimer IW3756-17?
For the GST Aquatimer, we recommend navy blue alligator leather, bourbon calf with natural stitching, or black rubber for frequent water use. The choice depends on the balance between elegance and sports functionality you wish to emphasize.
How do you change the strap on an IWC GST Aquatimer?
You need to remove the spring bars that hold the strap by inserting them into the case attachments. Use a proper tool (spring bar tool) to avoid damaging the strap or attachments. If you are not experienced, we recommend requesting support from a replacement service or Casati Milano.
Which aftermarket strap is compatible with the IW3756-17?
Any strap with a 22 millimeter lug width is compatible. On the market, Hirsch, Barenia, Everest models and our artisanal Milano Straps fit perfectly. Always verify the exact measurement before ordering.
How long does a leather strap last on the GST Aquatimer?
An artisanal quality leather strap, used regularly and subjected to ordinary maintenance (drying after water contact, treatment with light balms), lasts an average of 3-5 years. Rubber straps last longer, up to 8-10 years. The Casati Milano warranty is 18 months on every strap.
The next step
The right strap isn’t chosen. It is built, together.
From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.
Request an appointment →By appointment only · Milan
The atelier's website: casatimilano.com